Crankshaft Position Sensor Range/Performance Problem (Bank 1)
This code means there's an issue with the crankshaft position sensor signal on Bank 1.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The crankshaft position sensor tells the engine computer where the crankshaft is in its rotation. If the sensor gives a bad signal, the computer can't manage engine timing correctly, which can cause poor performance or stalling.
What the computer is actually seeing
The engine computer looks for a consistent signal from the crankshaft position sensor that typically swings between 0.5 to 5 volts as the crankshaft turns. If the signal is erratic or out of range, it triggers this code.
What a healthy reading looks like
Crankshaft position sensors usually output a voltage in the range of 0.5V to 5V. The signal should be stable during engine operation and should match the crankshaft speed.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect wiring and connectors related to the crankshaft position sensor for damage or corrosion. If damaged, repair or replace the wires/connectors. Decision: If connectors are good, proceed to step 2. If not, fix the wiring.
- 22. Check the crankshaft position sensor with a multimeter. The resistance should typically be between 200 to 900 ohms. If resistance is out of range, replace the sensor. Decision: If sensor passes, move to step 3. If not, replace the sensor.
- 33. Verify timing alignment. Check the timing belt/chain for proper alignment and tension. If misaligned, correct alignment. Decision: If alignment is good, proceed to step 4. If misaligned, fix alignment and recheck.
- 44. Clear the fault code and test drive the vehicle. Monitor the engine performance and check for the code to reappear. Decision: If code returns, replace the ECM after confirming all other components are functioning correctly.
Common causes
- Faulty crankshaft position sensor
- Wiring issues in the sensor circuit
- Timing belt/chain alignment issue
- Faulty engine computer (ECM)
- Poor connector condition (corrosion or breakage)
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive long distances, as it could lead to poor engine performance or stalling.
Will this code come back after clearing?
If the problem isn't fixed, the code will likely return after a drive cycle.
Can this issue be related to other sensors?
Yes, problems with timing and crankshaft position can affect other sensors like the camshaft position sensor.
Working a real vehicle right now?
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